shuttymutty9000 shuttymutty9000

02-07-2020
Mathematics

contestada

On a 12 problem test how many ways can 2 problems correct and 10 questions wrong?

Respuesta :

wolf1728 wolf1728

02-07-2020

Answer:

Basically we have to calculate how many ways 2 objects can be chosen from 12?

We use this formula

where n = 12 and r =2

12! / (2!) * (12 -2)! =

12! / (2) * 10! =

12 * 11 / 2 = 132 / 2

= 66 ways

Step-by-step explanation:

Ver imagen wolf1728

Answer Link

Otras preguntas

An article includes the accompanying data on compression strength (lb) for a sample of 12-oz aluminum cans filled with strawberry drink and another sample fille

who was akbar!????????

An example of mitosis at work is a plant root ____.

What was "good" and "bad" about your experience in doing the Folk Dance,Gayong-gayong?

Which two numbers add to -22 and multiply to 121?

what is the gram formula mass for Mg(OH)2

1. Michel buys a leash for his dog. The leash is 6 ft 3 inches. How long, in inches, is the leash?(1 ft = 12 inches) A) 48 inches B) 51 inches C) 72 inches D)

A student rolls a number cube 40 times. He rolls a 3 on the number cube 6 times. What is the experimental probability that he rolls a 3?

Over abundance of nutrients in the water is most likely to cause harm to which group of organisms? A. Any organism that uses calcium carbonate to build support

A 6.5 foot street sign casts a 10-foot shadow while a telephone pole casts a 40-foot shadow. How tall is the telephone pole?